java项目开发实战 BBS系统

package com.wsy.struts.bean; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import javax.sql.DataSource; import com.wsy.struts.datasource.DB; import com.wsy.struts.util.Constants; import com.wsy.struts.util.StringTrans; public class TopicListBean { private String id; private String content; private String author; private String submittime; private String forumid; private String title; private String xq;//主题表中的字段 private String rq;//人气 private int reCount;//每个主题回复的个数 private String lastTalk;//每个主题最新回复主题个数 private String forumname;//论坛名称 public String getForumname() { return forumname; } public void setForumname(String forumname) { this.forumname = forumname; } public int getReCount() { return reCount; } public void setReCount(int reCount) { this.reCount = reCount; } public String getLastTalk() { return lastTalk; } public void setLastTalk(String lastTalk) { this.lastTalk = lastTalk; } public String getXq() { return xq; } public void setXq(String xq) { this.xq = xq; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } public String getForumid() { return forumid; } public void setForumid(String forumid) { this.forumid = forumid; } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getSubmittime() { return submittime; } public void setSubmittime(String submittime) { this.submittime = submittime; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public List search(DataSource datasource,int pageid,String ForumId) throws Exception{ StringTrans s=new StringTrans(); List l=new ArrayList(); String sql="select * from tb_topic where forumid="+ForumId+" order by id desc limit "+pageid*Constants.TOPIC_PAGE_SIZE+","+Constants.TOPIC_PAGE_SIZE; System.out.println(sql); DB d=new DB(datasource); ResultSet rs=d.OpenSql(sql); ResultSet rscount=null; ResultSet rscount2=null; int count=0; while(rs.next()){ TopicListBean t=new TopicListBean(); t.setId(rs.getString("id")); t.setContent(rs.getString("content")); t.setAuthor(rs.getString("author")); t.setSubmittime(rs.getString("submittime")); t.setForumid(rs.getString("forumid")); t.setForumname(rs.getString("forumname")); t.setTitle(rs.getString("title")); t.setXq(rs.getString("xq")); t.setRq(rs.getString("rq")); String sqlcount="select count(*) from tb_response where topicid='"+t.getId()+"'";//取每个主题的回复总数 rscount=d.OpenSql(sqlcount); while(rscount.next()){ t.setReCount(rscount.getInt(1)); System.out.println("recount"+t.getReCount()); } rscount=null; String sqlcount2="select * from tb_response where topicname='"+s.tranC(t.getTitle())+" order by id desc'"; rscount2=d.OpenSql(sqlcount2); while(rscount2.next()){ t.setLastTalk(rs.getString("submittime")); } rscount2=null; l.add(t); } rs=null; d.close(); return l; } public int InsertData(String title,String content,String xq,String name,String forumid,String forumname,DataSource datasource){ int i=0; DB d=new DB(datasource); PreparedStatement pstmt=null; String sql="insert into tb_topic(title,content,xq,author,forumid,forumname) values(?,?,?,?,?,?)"; pstmt=d.PrepareInsert(sql); try{ pstmt.setString(1,title); pstmt.setString(2,content); pstmt.setString(3,xq); pstmt.setString(4,name); pstmt.setString(5,forumid); pstmt.setString(6, forumname); i=pstmt.executeUpdate(); }catch(SQLException e){ e.printStackTrace(); } d.close(); return i; } /*插入tb_response表数据*/ public int InsertDataResponse(String title,String content,String xq,String name,String topicid,String topicname,DataSource datasource){ int i=0; DB d=new DB(datasource); String sql="insert into tb_response(title,content,author,topicid,topicname,xq)values ('"+title+"','"+content+"','"+name+"','"+topicid+"','"+topicname+"','"+xq+"')"; System.out.println(sql); try{ i=d.ExecSql(sql); }catch(Exception e){ e.printStackTrace(); } d.close(); return i; } /*根据主题号在回复表中取信息*/ public List getRecordResponse(String topicid,DataSource datasource){ List list=new ArrayList(); DB d=new DB(datasource); ResultSet rs=null; String sql="select * from tb_response where topicid='"+topicid+"'"; try{ rs=d.OpenSql(sql); while(rs.next()){ TopicListBean t=new TopicListBean(); t.setId(rs.getString("id")); t.setTitle(rs.getString("title")); t.setContent(rs.getString("content")); t.setAuthor(rs.getString("author")); t.setSubmittime(rs.getString("submittime")); t.setXq(rs.getString("xq")); list.add(t); } }catch(Exception e){ e.printStackTrace(); } d.close(); return list; } public List getTotalRecordTopic(DataSource datasource){ List list=new ArrayList(); DB d=new DB(datasource); ResultSet rs=null; ResultSet rs2=null; String sql="select * from tb_topic"; try{ rs=d.OpenSql(sql); while(rs.next()){ TopicListBean t=new TopicListBean(); t.setId(rs.getString("id")); t.setTitle(rs.getString("title")); t.setForumid(rs.getString("forumid")); t.setForumname(rs.getString("forumname")); t.setContent(rs.getString("content")); t.setAuthor(rs.getString("author")); t.setSubmittime(rs.getString("submittime")); t.setXq(rs.getString("xq")); list.add(t); } }catch(Exception e){ e.printStackTrace(); } d.close(); return list; } public int DelRecord(String id,DataSource datasource){ int i=0; DB d=new DB(datasource); String sql="delete from tb_topic where id='"+id+"'"; i=d.ExecSql(sql); d.close(); return i; } public int DelRecordforForumn(String forumid,DataSource datasource){//由于删除某个论坛，所以相应这个论坛的主题也需要被删除 int i=0; String id=null; DB d=new DB(datasource); String sql2="select id from tb_topic where forumid='"+forumid+"'"; String sql="delete from tb_topic where forumid='"+forumid+"'"; ResultSet rs=d.OpenSql(sql2); try{ while(rs.next()){ id=rs.getString(1); String sql3="delete from tb_response where topicid='"+id+"'";//将回复表中相关论坛回复删除 System.out.println(sql3); System.out.println("topiclistBean"+d.ExecSql(sql3)); } }catch(Exception e){ e.printStackTrace(); } i=d.ExecSql(sql); d.close(); return i; } public String getRq() { return rq; } public void setRq(String rq) { this.rq = rq; } public int UpdateRq(String id,DataSource datasource){ int i=0; DB d=new DB(datasource); String sql="update tb_topic set rq=rq+1 where id='"+id+"'"; i=d.ExecSql(sql); d.close(); return i; } public int delRecordforUser(String name,DataSource datasource){ int i=0; DB d=new DB(datasource); String sql="delete from tb_topic where author='"+name+"'"; i=d.ExecSql(sql); d.close(); return i; } public List getTotalRecordTopic(String id,DataSource datasource){ List list=new ArrayList(); DB d=new DB(datasource); ResultSet rs=null; ResultSet rs2=null; String sql="select * from tb_topic where id='"+id+"'"; try{ rs=d.OpenSql(sql); while(rs.next()){ TopicListBean t=new TopicListBean(); t.setId(rs.getString("id")); t.setTitle(rs.getString("title")); t.setForumid(